US7610558B2 - Information processing apparatus and method - Google Patents

Information processing apparatus and method Download PDF

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Publication number
US7610558B2
US7610558B2 US10/354,006 US35400603A US7610558B2 US 7610558 B2 US7610558 B2 US 7610558B2 US 35400603 A US35400603 A US 35400603A US 7610558 B2 US7610558 B2 US 7610558B2
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Prior art keywords
hand
upcast
player
view
action
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Expired - Fee Related, expires
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US10/354,006
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US20030156144A1 (en
Inventor
Kenji Morita
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Canon Inc
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Canon Inc
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Assigned to CANON KABUSHIKI KAISHA reassignment CANON KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MORITA, KENJI
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating 3D models or images for computer graphics
    • G06T19/006—Mixed reality
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/10—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals
    • A63F2300/1012—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game characterized by input arrangements for converting player-generated signals into game device control signals involving biosensors worn by the player, e.g. for measuring heart beat, limb activity
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
    • A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
    • A63F2300/8082—Virtual reality

Definitions

  • the present invention relates to a technique for controlling a virtual object in a compound real-like space image by an action of a hand of a subject.
  • the present invention is made in consideration of the above-mentioned problems, and an object of the invention according to one aspect is to realize the casting of a virtual object to a partner who is desired by a subject by a simple and safe method in an apparatus for generating a compound real-like space image by synthesizing a real space image and a virtual space image.
  • an object of the invention according to another aspect is to easily realize simultaneous exchanging.
  • the present invention according to one aspect under the above objects relates to an information processing apparatus for generating and displaying a compound real space image in which a plurality of subjects have virtual objects by their hands respectively, by synthesizing a real space image and a virtual space image representing a virtual object, comprising means for measuring a position posture of the hand of the subject, means for measuring a view position and a view direction of the subject, and means for generating the virtual object in dependence upon the view position, the view direction and the position posture of the hand, and synthesizing the virtual object image with the real space image, and further comprising upcast action detecting means for calculating a shifting speed of the hand in an upward direction and for detecting an upcast action, means for judging that the hand is stopped if the shifting speed of the hand in the upward direction becomes smaller than a predetermined value after the upcast action was detected by the detecting means, and determining means for determining a partner subject to whom the virtual object is upcast on the basis of the view position and the view direction of
  • the present invention according to another aspect under the above object comprises judging means for judging whether or not the partner subject is effecting the upcast action when the judged upcast action to the partner subject is decided, measuring means for measuring the view direction of the partner subject, and control means for controlling a timing of processing for casting and receiving the virtual object between the subject and the partner subject in accordance with a judged result of the judging means and a measured result of the measuring means.
  • the present invention according to a further aspect under the above objects relates to an information processing method in which a position posture of a hand of a subject is measured, a view position and a view direction of the subject are measured, a virtual space image is generated in accordance with the view position, the view direction and the position posture of the hand, and a compound real-like space image is generated by synthesizing the virtual space image with a real space image, and wherein, when a shifting speed of the hand of the subject is detected and a condition that the shifting speed is not less than a predetermined value continues for a time not less than a predetermined time, the virtual space image is moved to another subject, and the another subject to whom the virtual space image is to be shifted is judged on the basis of the view position and the view direction when the shifting speed of the hand becomes smaller than a predetermined value after the condition that the shifting speed of the hand continues for the time not less than the predetermined time.
  • the present invention according to a further aspect under the above objects is characterized in that, if a condition that a shifting speed of a hand of another subject is not less than a predetermined value continues when the shifting speed of the hand becomes smaller than a predetermined value after a condition that the shifting speed of the hand is not less than the predetermined value continues for the time not less than the predetermined time, the respective virtual space images are moved from each other simultaneously between the subject and the another subject.
  • FIG. 1 is a system constructural view showing a schematic construction of a compound real-like system
  • FIG. 2 is a constructural view showing a construction of an HMD
  • FIG. 3 is a flow chart showing production processing for a compound real space image
  • FIG. 4 is a perspective view of the HMD, looked at from a direction of a photo-taking portion
  • FIG. 5 is a perspective view of the HMD, looked at from a displaying portion
  • FIG. 6 is a block diagram showing a hardware construction for one observer in the system of FIG. 1 ;
  • FIG. 7 is a flow chart showing processing for a casting event.
  • FIG. 8 is a flow chart showing processing for a simultaneous exchanging event.
  • FIG. 1 is a system constructural view showing a schematic construction of a compound real-like system to which a first embodiment of the present invention is applied.
  • a first observer 100 wears an HMD (Head Mount Display) 110 on his head and a glove 120 on his hand.
  • HMD Head Mount Display
  • the HMD 110 is constituted by a video camera 111 , an LCD 112 , a position direction measuring device receiver (position sensor for eyes) 113 , and optical prisms 114 , 115 .
  • the video camera 111 photo-takes a real space image in a view position and a view direction of the observer directed by the optical prism 115 .
  • the position sensor 113 for eyes is utilized to measure the view position and the view direction of the observer.
  • the LCD 112 serves to display a compound real space image and the image is directed to the observer by the optical prism 114 .
  • the glove 120 incorporates therein a position sensor 121 for a hand and a speaker (not shown).
  • the position sensor 121 for hand is utilized as a sensor for measuring a position and a direction of the hand of the observer.
  • the speaker emits a sound corresponding to an event generated at the hand position.
  • a sound for example, a sound generated when a virtual space object is touched or struck by the hand or a sound generated when a state of the virtual space object displayed in sync with the hand position is changed can be considered.
  • a position direction measuring device transmitter position sensor transmitter 130 and a position direction measuring device main body (position sensor main body) 131 .
  • the position sensor 113 for eyes, the position sensor 121 for hand and the position sensor transmitter 130 are connected to the position sensor main body 131 .
  • the position sensor transmitter 130 emits magnetism, and the magnetism is received by the position sensor 113 for eyes and the position sensor 121 for hand.
  • the position sensor main body 131 calculates positions and directions of the eyes and the hand on the basis of received intensity signals from the position sensor 113 for eyes and the position sensor 121 for hand.
  • the position direction measuring device FASTRAK manufactured by Polhemus Inc. in USA can be used.
  • a processing apparatus 140 serves to produce the compound real space image for one observer and to display such an image on the HMD 110 .
  • the processing apparatus 140 is constituted by a personal computer, and a video capture card, a video card having a CG drawing function or a sound card.
  • the HMD 110 , the speaker and the position sensor main body 131 are connected to the processing apparatus 140 .
  • a virtual character 170 is compounded as if it is rested on the hand of the first observer 100 .
  • a view line of the first observer is denoted by the reference numeral 180 .
  • the view line can be measured by the position sensor 113 for eyes, the position sensor transmitter 130 and the position sensor main body 131 .
  • a second observer 101 also has the same construction as the first observer.
  • the processing apparatus 140 takes the view position and the view direction, and the position and direction of the hand sent from the position sensor main body 131 (step S 301 ).
  • thread S 311 for periodically acquiring the view position and the view direction, and the position and direction of the hand sent from the position sensor main body 131 is utilized.
  • step S 302 the time of the virtual space is renewed and a virtual space state (kind, position and condition of the virtual space object) is renewed.
  • a virtual space state kind, position and condition of the virtual space object
  • step S 302 the position direction of the glove is renewed.
  • step S 303 a relationship between the position direction (position of hand and view position) of the real space object and the position direction of the virtual space object is checked, and, if it is judged that a pre-defined event is generated, the condition of the virtual space is renewed in accordance with such an event (step S 303 ). For example, it is considered that, if the virtual space object is touched by the hand, the virtual space object is exploded.
  • step S 304 the real space image in the view position and the view direction of the observer obtained from the video camera 111 is taken in (step S 304 ).
  • thread S 314 for periodically acquiring the virtual space image obtained by the video camera 111 from the video capture card is utilized.
  • the virtual space image from the view position and the view direction of the observer acquired in the step S 301 is produced in accordance with the condition of the virtual space renewed in the steps S 302 and S 303 (step S 305 ).
  • step S 305 the virtual space image produced in the step S 305 is synthesized with the real space image taken-in in the step S 304 , and the synthesized image is outputted to the LCD 112 of the HMD 110 (step S 306 ).
  • the above-mentioned processing operations are carried out repeatedly until any end action is effected (step S 307 ).
  • FIGS. 4 and 5 are perspective views of the HMD 110 , where FIG. 4 is a perspective view looked at from a direction of a photo-taking portion and FIG. 5 is a perspective view looked at from a displaying portion.
  • the HMD includes an HMD displaying portion 201 .
  • the HMD displaying portion 201 has two displaying portions, i.e. a displaying portion 201 R for right eye and a displaying portion 201 L for left eye, and each displaying portion includes a color liquid crystal and a prism and serves to display the compound real space image corresponding to the view position and the view direction of the observer.
  • constructural members 204 to 208 for head mounting There are provided constructural members 204 to 208 for head mounting.
  • the HMD 301 is mounted on the head, first of all, the HMD is worn on the head with a condition that a length adjusting portion 206 loosened by an adjuster 205 . Then, after a forehead mounting portion 208 is closely contacted with the forehead, the length adjusting portion 206 may be tightened by the adjuster 205 so that a side head mounting portion 204 and a rear head mounting portion 207 are closely contacted with the side head portion and the rear head portion, respectively.
  • an HMD photo-taking portion 203 for photo-taking the real space image in the view position and the view direction of the observer.
  • the HMD photo-taking portion 203 has two photo-taking portions, i.e. a photo-taking portion 203 R for right eye and a photo-taking portion 203 L for left eye, and each photo-taking portion is constituted by a small-sized camera of NTSC type.
  • the photo-taken real space image is overlapped with the virtual space image to generate the compound real space image.
  • a receiver 302 is utilized to receive magnetism emitted from the transmitter as information for measuring the view position and the view direction of the subject.
  • As attachment portions for attaching the receiver 302 to the HMD 301 there are three portions, i.e. receiver joint portions 200 R, 200 L and 200 C, so that the receiver can be detachably attached to any of these receiver joint portions 200 R, 200 L and 200 C. That is to say, in FIGS. 4 and 5 , although the receiver 302 is attached to the receiver joint portion 200 R at the right in the advancing direction of the view line of the observer, it can be attached to the receiver joint portion 200 L at the left in the advancing direction of the observer or to the receiver joint portion 200 C on the middle line of the observer.
  • receiver joint portions 200 R, 200 L and 200 C each has a construction having an insertion opening into which the receiver 302 is fixedly inserted
  • other detachable joint (attachment) systems may be used.
  • a receiver signal line 210 is exposed externally of the HMD 301 from the vicinity of the receiver joint portion 200 C.
  • the receiver signal line 210 has an adequate length so that the receiver 302 can be attached to either of the receiver joint portions 200 R, 200 L and 200 C.
  • bundled wires 209 obtained by bundling signal lines and power supply wires for the HMD displaying portion 201 and the HMD photo-taking portion 203 and various wires such as the receiver signal line 210 and the like, and the bundled wires are attached to the rear head mounting portion 207 .
  • the signal lines and the power supply wires, among the bundled wires 209 , for the left and right HMD displaying portions 201 R, 201 L, HMD photo-taking portions 203 R, 203 L and the like are passed through the left and right side head mounting portions 204 .
  • FIG. 6 is a block diagram showing a hardware construction for one observer in the system of FIG. 1 .
  • a processing apparatus (computer) 307 includes a video capture board 350 for right eye, a video capture board 351 for left eye, a graphic board 352 for right eye, a graphic board 353 for left eye, an I/O interface 354 and a network interface 359 , and these elements are connected to a CPU 356 , an HDD 355 and a memory 357 .
  • the video capture boards 351 , 350 for left and right eyes are connected to video cameras 203 L, 203 R for left and right eyes, respectively, so that the actually taken images photo-taken by the video cameras 203 L, 203 R can be converted to forms which can be synthesized with the virtual space image in the processing apparatus 307 .
  • the graphic boards 353 , 352 for left and right eyes are connected to the displaying portions (display devices) 201 L, 201 R for left and right eyes, respectively, thereby to effect display control for these displaying portions 201 L, 201 R for left and right eyes.
  • the I/O interface 354 is connected to a position direction measuring device main body 306 and the network interface 359 is connected to a network 330 .
  • a water surface of CG is generated on a palm of the hand, and, further, the compound real space image for synthesizing the virtual character is provided there.
  • the operation of the virtual character is controlled by using the action of the hand.
  • a method for effecting the casting of the virtual character will be concretely explained with reference to FIGS. 7 and 8 .
  • the upcast action is detected from the measured result of the position sensor for hand. For example, the fact that the first observer 100 is moving his hand upwardly at a speed not less (greater) than a predetermined speed (value) for a time period not less (greater) than a predetermined time (value) is detected. That is, the detection of the upcast action is executed by comparing the speed and the time of the upcast action with the predetermined value.
  • the hand motion can be detected by analyzing the progress of the hand position detected by the position sensor 121 for hand.
  • a step S 2002 from the measured result of the position sensor for hand, by detecting the time when the ascending speed (value) of the hand becomes smaller (not more) than a predetermined speed (value) after the upcast action was detected in the step S 2001 , the stopping of the upcast action is detected. That is, the stopping of the upcast action is detected by comparing the speed of the upcast action with the predetermined value.
  • a step S 2003 the partner who receives the virtual character is judged.
  • the partner who receives is determined from the view line 180 of the first observer 100 at the moment when the stopping of the upcast action is detected in the step S 2002 .
  • each observer since each observer has the position sensor, the position of each observer can be grasped.
  • the observer who exists at a position nearest to the view direction of the observer who is effecting the upcast action is detected, and the detected observer is determined as the partner who receives. Now, it is assumed that the second observer 101 is the partner who receives and explanation continues.
  • a step S 2004 the virtual character (virtual object) is moved in the compound real space to jump the virtual character toward the hand of the second observer determined in the step S 2003 .
  • This can be realized by controlling the drawing of the virtual space image in the step S 305 of FIG. 3 and synthesis in the step S 306 .
  • the determination of the moment when the movement is started from the position sensor for hand can be judged simply and properly, and the partner can be determined easily and properly from the view direction determined from the sensor for eye.
  • the upcast action of the virtual object to any observer can be determined easily and properly.
  • Procedures until the partner who receives is determined in the step S 2003 are the same as those shown in FIG. 7 .
  • a step S 2005 the state of the partner who receives (second observer) is checked, and, if the second observer is effecting the upcast action, in a step S 2006 , the view direction of the second observer is judged, and, if the second observer is looking at the first observer, in a step S 2007 , the event for effecting the simultaneous exchanging is generated.
  • the timing for casting the virtual object can easily be fitted.
  • step S 2004 the virtual character is merely cast from the first observer to the second observer.
  • the upcasting of the virtual object to the partner who is desired by the subject can be effected by the convenient and safe method, and the simultaneous exchanging can also be realized.
  • the present invention includes a concept that a program code of software for realizing the functions of the above-mentioned embodiment is supplied to a computer in an apparatus or a system connected to various devices to operate such devices thereby to realize the functions shown in FIGS. 7 and 8 , and the various devices are operated in accordance with a program stored in the computer (CPU or MPU) of the apparatus or the system.
  • the program code of the software itself realizes the functions of the above-mentioned embodiment, and, thus, the program code itself and means for supplying the program code to the computer, for example, a storing medium storing such a program code constitute the present invention.
  • a floppy disk for example, a floppy disk, a hard disk, an optical disk, a photo-magnetic disk, CD-ROM, a magnetic tape, a non-volatile memory card or ROM can be used.
  • the present invention includes a concept that, after the supplied program code is stored in a memory of function expansion board inserted into the computer or of a function expansion unit connected to the computer, a CPU of the function expansion board or of the function expansion unit executes the actual processing partially or totally on the basis of instruction of the program code to realize the functions of the above-mentioned embodiment.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Graphics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
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  • Processing Or Creating Images (AREA)
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  • User Interface Of Digital Computer (AREA)
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JP2002040092A JP4054585B2 (ja) 2002-02-18 2002-02-18 情報処理装置および方法
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